US4247679A
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Polyphosphazene copolymers containing acetylenic substituents
Assignee: Bridgestone Firestone Inc
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Filing: 1978-09-08
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Granted: 1981-01-27
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Expires: 1998-09-08
Abstract
Abstract Polyphosphazene copolymers are prepared which contain units represented by the formulas: <IMAGE> wherein X is -OR'RC-C &uarr& CH in which R and R' are hydrogen or alkyl groups containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20</=(a+b+c)</=50,000 per polymer. The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as moldings, coatings and the like.
Inventors
- 👤 William L. Hergenrother
- 👤 Adel F. Halasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:30
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
55 words
A soluble polyphosphazene copolymer containing units represented by the formulas: ##STR8## wherein X is --OR'RC--C.tbd.CH in which R and R' are hydrogen or alkyl groups containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups, and wherein 20≦(a+b+c)≦50,000 per polymer.
Claim 2
Dependent Claim
55 words
A soluble polyphosphazene copolymer containing units represented by the formulas: ##STR8## wherein X is --OR'RC--C.tbd.CH in which R and R' are hydrogen or alkyl groups containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups, and wherein 20≦(a+b+c)≦50,000 per polymer.
Claim 3
Dependent Claim
11 words
The copolymer of claim 1 wherein X is CH.tbd.C--CH 2 O--.
Claim 4
Dependent Claim
9 words
The copolymer of claim 1 wherein X is ##STR9##
Claim 5
Dependent Claim
15 words
The copolymer of claim 2 wherein X' is p-NO 2 C 6 H 5 O--.
Claim 6
Dependent Claim
13 words
The copolymer of claim 3 wherein X' is CF 3 CH 2 O--.
Claim 7
Independent Claim
126 words
A method of preparing soluble polyphosphazene copolymers containing units represented by the formulas: ##STR10## wherein X is --OR'RC--C.tbd.CH in which R and R' are selected from the group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20≦(a+b+c)≦50,000, said method comprising reacting a soluble poly(dichlorophosphazene) polymer having the formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000, with a mixture of an aliphatic acetylenic alcohol having the structure CH.tbd.C--CRR'OH wherein R and R' are as defined above and a substituted or unsubstituted aliphatic alcohol, aromatic alcohol, amino compound or mercaptan compound in the presence of a tertiary amine.
Claim 8
Independent Claim
126 words
A method of preparing soluble polyphosphazene copolymers containing units represented by the formulas: ##STR10## wherein X is --OR'RC--C.tbd.CH in which R and R' are selected from the group consisting of hydrogen and alkyl radicals containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20≦(a+b+c)≦50,000, said method comprising reacting a soluble poly(dichlorophosphazene) polymer having the formula --(NPCl 2 ) n --, wherein n is from 20 to 50,000, with a mixture of an aliphatic acetylenic alcohol having the structure CH.tbd.C--CRR'OH wherein R and R' are as defined above and a substituted or unsubstituted aliphatic alcohol, aromatic alcohol, amino compound or mercaptan compound in the presence of a tertiary amine.
Claim 9
Dependent Claim
12 words
The method of claim 6 wherein said acetylenic alcohol is propargyl alcohol.
Claim 10
Dependent Claim
11 words
The method of claim 6 wherein said acetylenic alcohol is 3-hydroxy-1-octyne.
Claim 11
Dependent Claim
14 words
The method of claim 6 wherein said mixture consists of propargyl alcohol and p-nitrophenol.
Claim 12
Dependent Claim
13 words
The method of claim 6 wherein said mixture consists of 3-hydroxy-1-octyne and trifluoroethanol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |